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Statistical methods ( also called stochastic or empirical ) are based on measured and averaged losses along typical classes of radio links.
Among the most commonly used such methods are Okumura-Hata, the COST Hata model, W. C. Y. Lee, etc.
These are also known as radio wave propagation models and are typically used in the design of cellular networks and PLMN.
For wireless communications in the VHF and UHF frequency band ( the bands used by walkie-talkies, police, taxis and cellular phones ), one of the most commonly used methods is that of Okumura-Hata as refined by the COST 231 project.
Other well-known models are those of Walfisch-Ikegami, W. C. Y.
Lee, and Erceg.
For FM radio and TV broadcasting the path loss is most commonly predicted using the ITU model as described in P. 1546 ( former P. 370 ) recommendation.

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